Revision 7109

- gui.pm: rewrote get_description, get_details, get_url_link, get_main_text
- gui.pm: dropped gtk expanders from format_pkg_simplifiedinfo (Files and Changelog still missing)
- gui.pm: added table_item_list hash (needed because of the -poor- YTable implementation)
- rpmdragora: added detaillist_callback to handle detail_list double-click event
- rpmdragora: switched info from YMultiLineEdit to YRichText widget